Truing wedge for matrix-setting and line-casting machines



June 24, 1930. E. G. ALBRECHT 1,767,110

TRUING WEDGE FOR IATRIX SETTING AND LINE CASTING IACHINES 'Filod m. 1, 192a J0 ve-nfar Patented June 24, 1930 UNITED STATES ERNST GOTTLIEB ALBRECHT, 0F BERLIN, GERMANY TRUING WEDGE FOR MATRIX-SETTING AND LINE-CASTING MACHINES Application fil ed December 1, 1928, Serial No. 323,022, and in Germany January 3 1928.

This invention has reference to type and line-setting and casting machines generally and it refers in particular to the truing or justifying means used in connection with such machines, and it is intended to simplify the construction and facilitate the arrangement and manipulation of devices of this kind and to produce other advantages and new objects which will appear from the specification and drawings. As a means of limiting the movement of the slide at the lower end of the sliding or guiding path of the truing or justifying wedge used in connection with matrix-setting and line-casting machines it has already been suggested to employ centrically moved disks arranged at the side of the sliding path referred to and which were flattened off at one side thereof, so that upon the rotation of such disks the non-flattened portion thereof became adapted to project into the sliding path of the slide and to arrest the downward movement thereof, while, when the disk was rotated so that the flattened portion was projected into the path of sliding movement the withdrawal of the slide in the downward direction became possible. It has also been proposed in the previous art to make use of a cam or an eccentric disk as a substitute for the flattened disk referred to.

In accordance with this invention such an eccentric disk is disposed in a recessed por tion of the wedge in such a manner that both in the locking position as well as in the re- 5 leasing position of the. wedge the disk will become closely engaged with the walls of the recess portion of the wedge or with a suitable stop, stud or the like, so that the slide will be prevented from pushing the disk away from its locking and engaging position.

The invention is shown by way of exemplification on the accompanying drawing as embodied in a truing wedge provided with the locking means according to the invention on an enlarged scale in Fig. 1 in plan v view with the wedge and the slide in the operating position; Fig. 2 shows the wedge with the-slide released and taken off. Fig. 3 is a cross-section on the line IIIIII of Fig. 1.

At the end of the wedge 1 a recess 7 is cut out from the guide 2 at one or both sides thereof. In this recess or socket 7 a disk 5 provided with a slot is rotatably disposed by means of the eccentrically arranged pin 6, so that the disk 5 upon being rotated with its pin 6 from the position according to Fig. 2 and in the anticlockwise direction will interrupt the sliding way of the slide 3 which is provided with the guiding projection 4 which, in its turn, will force the disk tightly against the wall of the recessed part 7, so that the disk will be secured against loosening and the sliding movement will be interrupted. Upon rotating the disk in the reverse direction into the position according to Fig. 2 the guide-way is released so that the slide 3 may be taken out, and the.

disk 5 will then place itself again against the opposite side of the walls of the recess part 7 of the edge.

The invention has been shown and described herein only in its broad features, and it should be understood that it is susceptible of changes and modifications within the scope and spirit of the appended claim.

I claim A device of the kind described comprising a bar having a slotted portion extending lengthwise thereof, the opposed faces of the walls of said slot constituting parallel opposed guide faces, and said bar being formed with a recess adjacent one end, said recess coinmunicatin with said slot, in combina- 1 tion with a slide fitting between and slidably engaging said opposed faces and being slidable lengthwise thereof and separable therefrom by continued movement endwise of said bar in a direction toward and beyond said recess, and an eccentric stop mounted in said recess and partially rotatable in the direction of endwise separating movement of said slide to project beyond said recess into the path of said slide and to eccentrically engage a Wall of said recess to be thereby locked against further turning in that direction under impact by said slide, said eccentric stop being partially rotatable in the reverse direction to be entirely received in said recess.

In testimony whereof I have signed my name to this specification at Berlin, Germany, this 12th day of November, 1928.

ERNST GOTTLIEB ALBRECHT. 

